Wallpaper Randomizer

简单好用的壁纸自动更换程序，完全免费。软件可设置壁纸更换的间隔时间、暂停更换、上一张、下一张，选择壁纸存放的目录即可开始使用

Wallpaper Randomizer is a small system tray wallpaper changer.Wallpaper Randomizer uses the ToPNG command line utility (already included in the download).Wallpaper Randomizer is provided free of charge, however if you are feeling generous, your donation will be highly appreciated.

It lets you:

See a different wallpaper whenever you start Windows.
Change wallpaper on regular intervals.
Change wallpaper using a hotkey.